TWI841010B - Control device having capacitive type visual button structure - Google Patents

Abstract

The present invention is related to a control device having a capacitive type visual button structure, which at least includes: a cover structure with a receiving space; and a transparent button disposed in the receiving space; wherein, the receiving space can be further provided with at least: an elastic body, a first electrode element, a key circuit board assembly having a second electrode element, and a display screen; wherein, the detection of the changes of the spatial distance between the first electrode element and the second electrode element, which is caused by pressing the transparent key, and then the changes will be formed different capacitance values, and then the control device detects and determines whether the transparent button has been pressed and triggered in response to the different capacitance values.

Description

Control device with capacitive visual key structure

This case is about a control device with a key structure, especially a control device with a capacitive visual key structure.

Currently, a control device with a visual key structure that combines a display screen with a light-transmitting key structure is popular on the market, and allows users to perform a key shortcut operation (or macro command operation) function, or allows the user to redefine the specific operation function of each key.

In the field of live broadcast applications, this control device with a visual button structure is very suitable for working in conjunction with existing input devices. In this way, not only does the control device have a visual button that can display visual information of a button function to facilitate the user (e.g., the live broadcaster) to quickly select and operate the function intuitively, but it also allows the user to redefine the functions of each button.

The button function visualization information can be static function visualization information (for example, displaying the specific operation function that any button can provide on the display screen), or dynamic function visualization information can be presented in one or more buttons.

However, the above-mentioned existing key structure matched with the display screen must be transparent to allow the screen image of the display screen below to pass through. Therefore, the generally known design method is to use a membrane switch with a hollow structure that allows the screen image to pass through, and set the pressing contact (Bump) on the elastic element of the key structure, so that when the user presses down the key cap and drives the above elastic element to cause it to deform, the contact will trigger the membrane switch below, and connect its broken circuit to output a pressing signal, thereby determining the key triggering.

Of course, the above-mentioned learned practices are only illustrated by taking the touch-sensitive key structure of the bump-touch film switch as an example. Other similar learned touch-sensitive key structures can also be applied to the aforementioned operation scenarios with visual keys.

However, no matter what kind of touch key structure is used in the prior art, since such a touch key structure must wait until the pressed point touches the membrane switch below (for example) before judging whether the key is triggered, the pressing result has only two fixed modes: completed touch (generated a pressing signal) and incomplete touch (no pressing signal), and there is no intermediate state for expanded application.

Furthermore, the key pressing stroke of these learned touch key structures is fixed, and the corresponding key pressing sensitivity is also fixed, and the user cannot be provided with space to change and adjust it; therefore, how to use other different key triggering methods to improve the shortcomings of the aforementioned learned practices is the technical focus of this case.

The main purpose of this case is to propose a control device with a capacitive visual key structure that performs key triggering in a capacitive touch mode and is combined with a visual key structure.

A preferred method of the present invention is a control device with a capacitive visual key structure, comprising: a cover structure, at least comprising an upper cover and a lower cover combined with the upper cover; a transparent key, exposed through a cover key hole of the upper cover; an elastic body, arranged and attached to the transparent key; a first electrode element, combined with one of the elastic body and the transparent key; a key circuit board assembly, having a second electrode element, and the first electrode element and the second electrode element are arranged to correspond to each other and are electrically connected to form a capacitive structure together; wherein, pressing the transparent key and linking the elastic body to change the first electrode element and the second electrode element The space distance between the pole elements is used to form at least one capacitance value variation, and the key circuit board assembly generates at least one corresponding key pressing information in response to the at least one capacitance value variation; a display screen is provided corresponding to a circuit board key hole of the key circuit board assembly and the transparent key; and a main control board is electrically connected to the key circuit board assembly and the display screen, the main control board is used to output at least one key function visual information to the display screen, so as to present the at least one key function visual information to the outside through the transparent key, and to input the at least one key pressing information, and generate and output at least one key function control instruction in response.

Preferably, the cover structure further includes an inner cover disposed between the upper cover and the lower cover and adjacent to the inner side of the upper cover, and the inner cover has another cover key hole corresponding to the cover key hole, so that the transparent key can pass through the other cover key hole and the cover key hole to be exposed.

Preferably, the elastic body has an elastic body key hole, which corresponds to the transparent key passing through the cover key hole, so that the display screen can present the at least one key function visual information from the transparent key through the elastic body key hole.

Preferably, the first electrode element is distributed in the surrounding area of the elastic body key hole.

Preferably, the first electrode element is distributed and disposed on at least a portion of one of a first surface area and a second surface area of the elastic body, and the elastic body is located between the upper cover and the key circuit board assembly, so that the first surface area of the elastic body is adjacent to the upper cover, and the second surface area of the elastic body is adjacent to the key circuit board assembly.

Preferably, the key circuit board assembly includes at least a key circuit board having a key hole of the circuit board and a circuit board support structure; wherein the key circuit board having the key hole of the circuit board is adjacent to the second surface area of the elastic body, and the key circuit board assembly is located above the display screen.

Preferably, the circuit board supporting structure is a hollow frame structure for supporting the key circuit board, and the circuit board key hole and the hollow frame structure can correspond to the elastic body key hole, and can correspond to the transparent key passing through the cover key hole, so that the display screen can present the at least one key function visual information from the transparent key through the hollow frame structure, the circuit board key hole and the elastic body key hole.

Preferably, the second electrode element is disposed on the key circuit board, and the first electrode element and the second electrode element are disposed correspondingly and electrically connected to each other to form the capacitor structure together.

Preferably, the second electrode element is a metal wire, and is distributed around the key hole of the circuit board and corresponds to the first electrode element.

Preferably, the metal wire includes at least one of a closed ring metal wire, an open L-shaped metal wire and a closed ring sawtooth metal wire, which are distributed around the key hole of the circuit board.

Preferably, the first electrode element can be at least one of a metal sheet, a conductive coating, a conductive rubber and/or a plurality of metal particles bonded to the conductive rubber.

Preferably, the bottom of the transparent button has a button protruding brim extending outward, and the bottom of the transparent button is used to abut against the elastic body, and the first electrode element is distributed and arranged above the surface of the button protruding brim, so that the first electrode element and the transparent button are linked together.

Preferably, the key circuit board assembly includes at least a key circuit board having a key hole of the circuit board and a circuit board support structure, and the key circuit board assembly is located between the upper cover and the first electrode element; wherein the second electrode element is a metal wire and is distributed around the circuit board key hole and corresponds to the first electrode element.

Preferably, the first electrode element can be at least one of a metal sheet, a conductive coating, a conductive rubber and/or a plurality of metal particles bonded to the conductive rubber.

Preferably, the circuit board key hole corresponds to the cover key hole located above it and the elastic body key hole located below it, and the transparent key is arranged therethrough, so that the display screen located below the elastic body can present the at least one key function visual information from the transparent key through the elastic body key hole and the circuit board key hole.

Preferably, the transparent button is pressed and the elastic body is linked, so that the elastic body generates an elastic deformation to change the space distance between the first electrode element and the second electrode element, thereby forming the at least one capacitance value variation, and the button circuit board assembly generates the corresponding at least one button pressing information in response to the at least one capacitance value variation.

Another preferred method of the present invention is a control device with a capacitive visual key structure, comprising: a cover structure with a receiving space; and a transparent key, which is disposed in the receiving space and is exposed through a cover key hole of the cover structure; wherein the receiving space can be provided with at least: an elastic body, which is disposed and attached to the transparent key; a first electrode element, which is combined with one of the elastic body and the transparent key; a key circuit board assembly, which has a second electrode element, and the first electrode element and the second electrode element are made to correspond to each other. and electrically connected to form a capacitor structure; wherein the transparent button is pressed and the elastic body is linked to change the space distance between the first electrode element and the second electrode element, thereby forming at least one capacitance value variation, and the control device generates at least one corresponding key pressing information in response to the at least one capacitance value variation; and a display screen is set corresponding to a circuit board button hole of the button circuit board assembly and the transparent button to output and present at least one key function visual information provided by the control device through the transparent button.

Preferably, the elastic body has an elastic body key hole, which corresponds to the transparent key passing through the cover key hole, so that the display screen can present the at least one key function visual information from the transparent key through the elastic body key hole.

Preferably, the first electrode element is distributed and disposed on at least a portion of one of a first surface area and a second surface area of the elastic body, and the elastic body is located between the cover structure and the key circuit board assembly, so that the first surface area of the elastic body is adjacent to the cover structure, and the second surface area of the elastic body is adjacent to the key circuit board assembly.

Preferably, the key circuit board assembly includes at least a key circuit board having a key hole of the circuit board and a circuit board support structure; wherein the key circuit board having the key hole of the circuit board is adjacent to the second surface area of the elastic body, and the key circuit board assembly is located above the display screen.

Preferably, the second electrode element is disposed on the key circuit board, and the first electrode element and the second electrode element are disposed correspondingly and electrically connected to each other to form the capacitor structure together.

Preferably, the first electrode element can be at least one of a metal sheet, a conductive coating, a conductive rubber and/or a plurality of metal particles bonded to the conductive rubber.

Preferably, the bottom of the transparent button has a button protruding brim extending outward, and the bottom of the transparent button is used to abut against the elastic body, and the first electrode element is distributed and arranged above the surface of the button protruding brim, so that the first electrode element and the transparent button are linked together.

Preferably, the key circuit board assembly includes at least a key circuit board having a key hole of the circuit board and a circuit board support structure, and the key circuit board assembly is located between the cover structure and the first electrode element; wherein the second electrode element is a metal wire and is distributed around the circuit board key hole and corresponds to the first electrode element.

Preferably, the circuit board key hole corresponds to the cover key hole located above it, and corresponds to the elastic body key hole located below it, and the transparent key is arranged therethrough, so that the display screen located below the elastic body can present the at least one key function visual information from the transparent key through the elastic body key hole and the circuit board key hole.

Preferably, the transparent button is pressed and the elastic body is linked, so that the elastic body generates an elastic deformation to change the space distance between the first electrode element and the second electrode element, thereby forming the at least one capacitance value variation, and one of the button circuit board assembly and the main control board further included in the control device generates the corresponding at least one button pressing information in response to the at least one capacitance value variation.

Preferably, the main control board is electrically connected to the key circuit board assembly and the display screen, and the main control board is used to output the at least one key function visualization information to the display screen, so as to present the at least one key function visualization information to the outside through the transparent key, and to generate and output at least one key function control instruction in response to the at least one key pressing information.

Another preferred method of the present invention is a control device with a capacitive visual key structure, comprising: a cover structure; a transparent elastic key structure, which is exposed through a cover key hole of the cover structure; a first electrode element, which is combined with the transparent elastic key structure; a circuit control component, which has a second electrode element, and the first electrode element and the second electrode element are arranged to correspond to each other and are electrically connected to form a capacitive structure together; wherein, pressing the transparent elastic key structure , to change the space distance between the first electrode element and the second electrode element, so as to form at least one capacitance value variation, and make the circuit control component generate at least one corresponding key pressing information in response to the at least one capacitance value variation; and a display screen, electrically connected to the circuit control component, and the display screen is set corresponding to the transparent elastic key structure, so as to output and present at least one key function visual information provided by the circuit control component through the transparent elastic key structure.

Preferably, the cover structure includes at least an upper cover and a lower cover combined with the upper cover, and together form a receiving space for at least arranging the transparent elastic key structure, the first electrode element, the circuit control component having the second electrode element, and the display screen.

Preferably, the cover structure further includes an inner cover disposed between the upper cover and the lower cover and adjacent to the inner side of the upper cover, and the inner cover has another cover key hole corresponding to the cover key hole, so that the transparent elastic key structure can pass through the other cover key hole and the cover key hole to be exposed.

Preferably, the transparent elastic key structure at least includes: a transparent key, which is exposed through the key hole of the cover; and an elastic body, which is arranged and attached to the transparent key.

Preferably, the elastic body has an elastic body key hole, which corresponds to the transparent key passing through the cover key hole, so that the display screen can present the at least one key function visual information from the transparent key through the elastic body key hole.

Preferably, the first electrode element is distributed and disposed on at least a portion of one of a first surface area and a second surface area of the elastic body, and the elastic body is located between the cover structure and the circuit control component, so that the first surface area of the elastic body is adjacent to the cover structure, and the second surface area of the elastic body is adjacent to the circuit control component.

Preferably, the circuit control assembly includes at least a key circuit board having a circuit board key hole and a circuit board support structure; wherein the key circuit board having the circuit board key hole is adjacent to the second surface area of the elastic body, and the key circuit board and the circuit board support structure are located above the display screen.

Preferably, the second electrode element is disposed on the key circuit board, and the first electrode element and the second electrode element are disposed correspondingly and electrically connected to each other to form the capacitor structure together.

Preferably, the first electrode element can be at least one of a metal sheet, a conductive coating, a conductive rubber and/or a plurality of metal particles bonded to the conductive rubber.

Preferably, the bottom of the transparent button has a button protruding brim extending outward, and the bottom of the transparent button is used to abut against the elastic body, and the first electrode element is distributed and arranged above the surface of the button protruding brim, so that the first electrode element and the transparent button are linked together.

Preferably, the circuit control component at least includes a key circuit board having a circuit board key hole and a circuit board support structure, and the circuit control component is located between the cover structure and the first electrode element; wherein the second electrode element is a metal wire and is distributed around the circuit board key hole and corresponds to the first electrode element

Preferably, the circuit board key hole corresponds to the cover key hole located above it, and corresponds to the elastic body key hole located below it, and the transparent key is arranged therethrough, so that the display screen located below the elastic body can present the at least one key function visual information from the transparent key through the elastic body key hole and the circuit board key hole.

Preferably, the transparent button is pressed and the elastic body is linked, so that the elastic body generates an elastic deformation to change the space distance between the first electrode element and the second electrode element, thereby forming the at least one capacitance value variation, and the button circuit board generates the corresponding at least one button pressing information in response to the at least one capacitance value variation.

Preferably, the circuit control component further includes a main control board, and pressing the transparent button links the elastic body, so that the elastic body generates an elastic deformation to change the space distance between the first electrode element and the second electrode element, thereby forming the at least one capacitance value variation, and causing the button circuit board and the main control board to generate the corresponding at least one button pressing information in response to the at least one capacitance value variation.

Preferably, the main control board is electrically connected to the button circuit board and the display screen, and the main control board is used to output the at least one button function visualization information to the display screen, so as to present the at least one button function visualization information to the outside through the transparent button, and to generate and output at least one button function control instruction in response to the at least one button pressing information.

In order to better understand the above and other aspects of this case, the following is a detailed description of the embodiments with the attached drawings.

10, 20, 30: Control device

11, 21, 31: Upper cover

110, 210, 310: Cover button holes

111, 211: Inner cover

1110, 2110: Another cover button hole

12, 22, 32: Lower cover

13, 23, 33: Transparent buttons

331: Button to highlight the brim

14, 24, 34: elastic body

140, 240, 340: elastic body key hole

141, 241: A first surface area of an elastic body

142, 242: A second surface area of one of the elastic bodies

15, 25, 35: first electrode element

16, 26, 36: Button circuit board assembly

160, 260, 360: Circuit board key holes

161, 261: Button circuit board

162, 262: Circuit board support structure

17, 27: Second electrode element

18, 28, 38: Display screen

19, 29, 39: Main control panel

L1: Closed loop metal wire

L2: Open L-shaped metal wire

L3: Closed ring sawtooth metal wire

D: Thickness of elastic body structure

[Figure 1A] is a three-dimensional conceptual diagram of a first preferred embodiment of a control device having a capacitive visual key structure of the present invention.

[Figure 1B] is a conceptual diagram of the component explosion of the first preferred embodiment of Figure 1A.

[Figure 2A] is a top view conceptual diagram of the key circuit board assembly with the second electrode element in Figure 1B.

[Figure 2B] is an enlarged conceptual diagram of three preferred implementations of the second electrode element in Figure 1B.

[Figure 3] is a partial cross-section and enlarged conceptual diagram of the first preferred embodiment in Figure 1A.

[Figure 4A] is a schematic diagram showing the concept of component explosion of a second preferred embodiment of the control device with a capacitive visual key structure of the present invention.

[Figure 4B] is a partial cross-sectional conceptual diagram of the second preferred embodiment in Figure 4A.

[Figure 5] is a partial cross-sectional schematic diagram of a third preferred embodiment of the control device with a capacitive visual key structure of the present invention.

The following is a detailed description of an embodiment. The embodiment is only used as an example and does not limit the scope of protection of this case. In addition, the figures in the embodiment omit unnecessary components or components that can be completed with conventional technology to clearly show the technical features of this case.

First, several preferred embodiments of a control device with a capacitive visual key structure are provided below, but the present invention is not limited thereto. In the capacitive visual key structure provided in each embodiment, a preferred method is to use soft glue technology to make a transparent key, so that each transparent key can present a variety of image changes through a display screen located below it, and can be matched with an elastic body to perform an elastic pressing stroke. In addition, in the inductive control design part of the control device, a preferred method is to use various electrode materials that can be used to change the capacitance value, such as the first electrode element, And on the key circuit board (for example, Flex or PCBA board), various electrode materials that can also be used to change the capacitance value are distributed and wired (Layout) to form the second electrode element, and the change in the spatial distance between them due to the elastic pressing stroke is detected, thereby sensing the change in different capacitance values, and then detecting and determining whether the transparent key has been triggered by the control device; among them, various equal change designs including the above-mentioned capacitance value change formed by the above-mentioned electrode elements being separated or close to each other can be included in the invention implementation concept of this case.

Furthermore, the present invention provides various embodiments of a control device with a capacitive visual key structure. Preferably, the control device can be a live broadcast control device or a director, but the present invention is not limited to these application fields.

Please refer to Figure 1A and Figure 1B for further reference; Figure 1A is a three-dimensional conceptual schematic diagram of a first preferred embodiment of a control device having a capacitive visual key structure of the present invention, and Figure 1B is a conceptual schematic diagram of a component explosion of the first preferred embodiment of Figure 1A.

In FIG. 1A and FIG. 1B, the control device 10 with a capacitive visual key structure provided in the first preferred embodiment of the present invention comprises at least: a cover structure, comprising at least an upper cover 11 and a lower cover 12 combined with the upper cover 11; a transparent key 13, exposed through a cover key hole 110 of the upper cover 11; an elastic body 14, disposed and attached to the transparent key structure; A transparent key 13; a first electrode element 15, combined with the elastic body 14; a key circuit board assembly 16, having a second electrode element 17, and the first electrode element 15 and the second electrode element 17 are arranged corresponding to each other and electrically connected to form a capacitor structure together; wherein, pressing the transparent key 13 and linking the elastic body 14 to change the first electrode element 15 The space distance between the second electrode element 17 and the second electrode element 17 is used to form at least one capacitance value variation, and the key circuit board assembly 16 generates at least one key pressing information corresponding to the at least one capacitance value variation; a display screen 18 is set corresponding to a circuit board key hole 160 of the key circuit board assembly 16 and the transparent key 13; and a main control board 19, electrically connected to the key circuit board assembly 16 and the display screen 18, the main control board 19 is used to output at least one key function visual information to the display screen 18, so as to present the at least one key function visual information to the outside through the transparent key 13, and to input the at least one key pressing information, and generate and output at least one key function control instruction accordingly.

In a preferred embodiment, the cover structure further includes an inner cover 111 disposed between the upper cover 11 and the lower cover 12 and adjacent to the inner side of the upper cover 11 as shown in FIG. 1B , and the inner cover 111 has another cover key hole 1110 corresponding to the cover key hole 110, so that the transparent key 13 can pass through the other cover key hole 1110 and the cover key hole 110 and be exposed.

Of course, in this embodiment, the upper cover 11 and the inner cover 111 are two independent components, but in other embodiments (not shown), the inner cover can be omitted, or the upper cover 11 and the inner cover 111 can be formed into a single component in an integral molding manner, which are just various equal variation designs, and this case is not limited to this.

Furthermore, in this embodiment, the upper cover 11 and the lower cover 12 can jointly form a receiving space for receiving and arranging at least the transparent key 13, the elastic body 14, the first electrode element 15, the circuit control component 16 having the second electrode element 17, the display screen 18 and the main control board 19 therein.

Furthermore, in this embodiment, the elastic body 14 has an elastic body key hole 140, which corresponds to the transparent key 13 passing through the cover key hole 110, so that the display screen 18 can present the at least one key function visual information from the transparent key 13 through the elastic body key hole 140

The number of the transparent keys 13 and the corresponding number of the cover key holes 110 can be single or multiple, and although 15 transparent keys are used as an example in FIG. 1A and FIG. 1B of this case, it is not limited to this. Of course, the transparent key 13 itself is made of a transparent plastic material that can transmit light; similarly, the number of the circuit board key holes 160 and the elastic body key holes 140 in this embodiment are also arranged in accordance with the actual number of the transparent keys 13, and can also be single or multiple.

In addition, the elastic body 14 of the present invention has a first surface area (or called the upper surface area) 141 and a second surface area (or called the lower surface area) 142 corresponding to the first surface area 141; wherein, a structural feature of the first preferred embodiment of the present invention is that the first electrode element 15 is distributed and arranged in the second surface area (or called the lower surface area) 142. At least a part of the area, and the elastic body 14 is located between the upper cover 11 (and the inner cover 111) and the key circuit board assembly 16, so that the first surface area (or upper surface area) 141 of the elastic body 14 is adjacent to the upper cover 11 (and the inner cover 111), and the second surface area (or lower surface area) 142 of the elastic body 14 is adjacent to the key circuit board assembly 16.

Among them, the first electrode element 15 in this embodiment can be distributed in the second surface area 142 and close to the surrounding area of the elastic body key hole 140, and the present case is not limited to this.

As for the material used for the first electrode element 15, for example, it can be at least a metal sheet, a conductive coating, a conductive rubber and/or at least one of a plurality of metal particles bonded to the conductive rubber, etc. Various electrode materials that can be used to change the capacitance value can be implemented accordingly, and the present case is not limited to this.

Of course, a better approach is to use an adhesive or an insert-molding method to form the first electrode element 15 on the second surface area (or referred to as the lower surface area) 142 of the elastic body 14, and the present invention is not limited thereto.

Please further refer to FIG. 2A, FIG. 2B and FIG. 3; FIG. 2A is a top view conceptual diagram of the key circuit board assembly 16 with the second electrode element 17 in FIG. 1B; FIG. 2B is an enlarged conceptual diagram of three preferred embodiments of the second electrode element in FIG. 1B; and FIG. 3 is a partial cross-section and enlarged conceptual diagram of the first preferred embodiment in FIG. 1A.

Another structural feature of the first preferred embodiment of the present case is that the key circuit board assembly 16 at least includes a key circuit board 161 having the circuit board key hole 160 and a circuit board support structure 162; wherein the key circuit board 161 having the circuit board key hole 160 is adjacent to the second surface area (or lower surface area) 142 of the elastic body 14, and the key circuit board assembly 16 is located on one side (or above) of the display screen 18.

In a preferred embodiment, the circuit board support structure 162 is a hollow frame structure for supporting the key circuit board 161, and the circuit board key hole 160 and the hollow frame structure 162 can correspond to the elastic body key hole 140, and can correspond to the transparent key 13 passing through the cover key hole 110, so that the display screen 18 can present the at least one key function visual information from the transparent key 13 through the hollow frame structure 162, the circuit board key hole 160 and the elastic body key hole 140.

Of course, in another better approach, the circuit board support structure 162 can also be omitted and not implemented according to actual application needs, and this case is not limited to this.

Please refer to FIG. 1B, FIG. 2A and FIG. 2B together, in which the second electrode element 17 is disposed on the key circuit board 161, and the first electrode element 15 and the second electrode element 17 are disposed correspondingly and electrically connected to each other to form the capacitor structure together.

In a preferred embodiment, the second electrode element 17 is a metal wire (or a polar metal pad), and the preferred specific implementation of the metal wire includes at least one of a closed annular metal wire L1, an open L-shaped metal wire L2, and a closed annular sawtooth metal wire L3, which are distributed around the circuit board key hole 160 and correspond to the first electrode element 15; the preferred specific implementation of the metal wire 17 is not limited to the above description.

Of course, it can be further understood from the partial cross-section and enlarged conceptual schematic diagram of the first preferred embodiment of the present invention shown in FIG. 3 that in the first preferred embodiment of the present invention, the first electrode element 15 is distributed and disposed in at least a portion of the second surface area (or referred to as the lower surface area) 142 of the elastic body 14, and is disposed in correspondence with the second electrode element 17 distributed on the key circuit board 161, and can be spaced apart from each other by a space distance (or a height of the elastic body structure). Thus, when the transparent key 13 is pressed and the elastic body 14 is linked, so that the elastic body 14 generates an elastic deformation and changes the space distance between the first electrode element 15 and the second electrode element 17 (or thereby changes the height of the elastic body structure), the at least one capacitance value variation can be formed, and the key circuit board assembly 16 generates the corresponding at least one key pressing information (for example, the key pressing information) in response to the at least one capacitance value variation.

In addition, when the transparent key 13 is released, the elastic body 14 is also linked, so that the elastic body 14 is restored to the original space distance between the first electrode element 15 and the second electrode element 17 (or restored to the original height of the elastic body structure) in response to the elastic deformation. Therefore, for another capacitance value variation formed in this process, if there is a need for implementation and application, the key circuit board assembly 16 can also generate another corresponding key pressing information (for example, key release information) in response to the other capacitance value variation and use it, and the present case is not limited to this.

Of course, if there are multiple transparent keys 13 and a single key is used as an example, the continuous process of the capacitance change and the other capacitance change generated by pressing or releasing the transparent key 13 and linking the elastic body 14 and changing the space distance between the first electrode element 15 and the second electrode element 17 can also be regarded as a key touch stroke of the single key. In this way, the main control board 19 can easily distinguish a specific key that has been executed by a user and the remaining keys that have not been executed.

Since the present invention forms the capacitor structure by means of the first electrode element 15 and the second electrode element 17 being arranged correspondingly and electrically connected to each other, the present invention can not only switch the transparent key 13 between the two common modes of performing the key touch stroke (generating a press signal) and not performing the key touch stroke (not generating a press signal), but also obviously add more intermediate states for expanded application. For example, when the transparent key 13 is not pressed to 1/2 or 1/3 of the pressing stroke, an expanded key pressing information (for example, key information that has been prepared to be pressed) can be generated accordingly, so that the user can expand and use it, and the present invention is not limited to this.

Furthermore, the capacitor structure formed by the first electrode element 15 and the second electrode element 17 of the present invention can also make the sensitivity of the transparent key 13 to be pressed more easily and flexibly adjusted according to the user's habits or application areas, which can also provide the user with greater flexibility and application space.

Furthermore, in this embodiment, the transparent key 13, the elastic body 14, the first electrode element 15, and the key circuit board assembly 16 having the second electrode element 17 (including a key circuit board and a circuit board support structure) are the main structural components constituting the capacitive visual key structure, and this case is not limited to this.

Among them, regarding the implementation method of the transparent key 13 and the elastic body 14, the present case can also change them from two independent components to a single component formed by integral molding or assembly. For example, they can be formed into a transparent elastic key structure, but it is not limited to this.

In addition, the at least one key pressing information mentioned above in this case is basically generated by the key circuit board component 16 in response to the at least one capacitance value variation, but in another equal variation implementation method, the at least one key pressing information can also be generated by the main control board 19, and this case is not limited to this.

Similarly, regarding the implementation of two independent circuit board bodies such as the main control board 19 and the key circuit board assembly 16, the present case can also change them from two independent components to a single component formed by integral molding or assembly. For example, it can be formed into a circuit control assembly and replace the various functions of the main control board 19 and the key circuit board assembly 16.

Please refer to Figure 4A and Figure 4B; Figure 4A is a conceptual diagram of the explosion of the components of the second preferred embodiment of the control device with a capacitive visual key structure of the present invention, and Figure 4B is a conceptual diagram of a partial cross-section of the second preferred embodiment in Figure 4A.

The control device 20 with a capacitive visual key structure shown in the second preferred embodiment of the present invention at least comprises: a cover structure, at least comprising an upper cover 21 and a lower cover 22 combined with the upper cover 21; a transparent key 23, exposed through a cover key hole 210 of the upper cover 21; an elastic body 24, disposed and attached to the transparent key 23. ; a first electrode element 25, combined with the elastic body 24; a key circuit board assembly 26, having a second electrode element 27, and the first electrode element 25 and the second electrode element 27 are arranged corresponding to each other and electrically connected to form a capacitor structure together; wherein, pressing the transparent key 23 and linking the elastic body 24 to change the first electrode element 25 and the second electrode element The space distance between the two electrode elements 27 is used to form at least one capacitance value variation, and the key circuit board assembly 26 generates at least one key pressing information corresponding to the at least one capacitance value variation; a display screen 28 is set corresponding to a circuit board key hole 260 of the key circuit board assembly 26 and the transparent key 23; and a main control board 2 9, electrically connected to the button circuit board assembly 26 and the display screen 28, the main control board 29 is used to output at least one button function visual information to the display screen 28, so as to present the at least one button function visual information to the outside through the transparent button 23, and to input the at least one button pressing information, and generate and output at least one button function control instruction accordingly.

Similarly, the key circuit board assembly 26 at least includes a key circuit board 261 having the circuit board key hole 260 and a circuit board supporting structure 262.

The implementation elements and implementation functions of the second preferred embodiment shown in FIG. 4A and FIG. 4B are basically similar to those of the first preferred embodiment shown in FIG. 1B and FIG. 3, and will not be described in detail here; in addition, the second preferred embodiment shown in FIG. 4A and FIG. 4B is different from the first preferred embodiment shown in FIG. 1B and FIG. 3 in that the elastic body 24 also has a first surface area (or called the upper surface area) 241 and a second surface area (or called the lower surface area) 242. The first electrode element 25 is distributed and arranged in at least a part of the first surface area (or upper surface area) 241, and the elastic body 24 is located between the upper cover 21 (and the inner cover 211) and the key circuit board assembly 26, so that the first surface area (or upper surface area) 241 of the elastic body 24 is adjacent to the upper cover 21 (and the inner cover 211), and the second surface area (or lower surface area) 242 of the elastic body 24 is adjacent to the key circuit board assembly 26.

Among them, the first electrode element 25 in this embodiment can be distributed in the first surface area 241 and close to the surrounding area of the elastic body key hole 240, and the present case is not limited to this.

However, it should be particularly noted that when the second preferred embodiment shown in FIG. 4A and FIG. 4B is used to implement the present invention, a layer of elastic body structure will be placed between the first electrode element 25 and the second electrode element 27. Therefore, it should be noted that the thickness D of the elastic body at this location should not be too thick, so as not to affect the generation of the capacitance effect.

Please refer to Figure 5, which is a partial cross-sectional schematic diagram of a third preferred embodiment of the control device with a capacitive visual key structure of the present invention.

The control device 30 with a capacitive visual key structure shown in the third preferred embodiment of the present invention comprises at least: a cover structure, comprising at least an upper cover 31 and a lower cover 32 combined with the upper cover 31; a transparent key 33, exposed through a cover key hole 310 of the upper cover 31; an elastic body 34, disposed and attached to the transparent key 33; a first capacitive key structure; a first capacitive key structure; a second capacitive key structure; a first ... a first electrode element 35; a key circuit board assembly 36 having a second electrode element (not shown in the figure, but the same element in the above-mentioned embodiments can be referred to), and the first electrode element 35 and the second electrode element are arranged corresponding to each other and electrically connected to form a capacitor structure together; wherein, pressing the transparent key 33 and linking the elastic body 34 to change the first electrode element 3 5 and the second electrode element, thereby forming at least one capacitance value variation, and causing the key circuit board assembly 36 to generate at least one key pressing information corresponding to the at least one capacitance value variation; a display screen 38, which is set corresponding to a circuit board key hole 360 of the key circuit board assembly 36 and the transparent key 33; and a main control panel 39, electrically connected to the button circuit board assembly 36 and the display screen 38, the main control board 39 is used to output at least one button function visual information to the display screen 38, so as to present the at least one button function visual information to the outside through the transparent button 33, and to input the at least one button pressing information, and generate and output at least one button function control instruction accordingly.

The implementation elements and implementation functions of the third preferred embodiment shown in FIG. 5 are basically similar to those of the first preferred embodiment shown in FIG. 1B and FIG. 3 , and will not be described in detail here; in addition, the third preferred embodiment shown in FIG. 5 is different from the first preferred embodiment shown in FIG. 1B and FIG. 3 in that the first electrode element 35 in the third preferred embodiment of the present case is combined with the transparent key 33 instead; a preferred practice is that the bottom of the transparent key 33 has a key protruding brim 331 extending outward, and the bottom of the transparent key 33 is used to abut against the elastic body 34, and the first electrode element 35 is distributed and arranged above the surface of the key protruding brim 331, so that the first electrode element 35 and the transparent key 33 are linked together.

Therefore, the first electrode element 35 can be formed above the key protruding brim 331 by using an adhesive or an integral injection molding (insert-molding) method, and the key circuit board assembly 36 can be relocated above the elastic body 34. In this way, when the user presses down the transparent key 33 to generate a key displacement, the first electrode element 35 and the key circuit board assembly located at the key protruding brim 331 will be changed (pulled apart). 36, thereby forming a capacitance change, and it can be determined that the transparent key 33 has been pressed and triggered; of course, when the transparent key 33 is restored to its initial position by the elastic body 34 due to the user releasing the pressure, the first electrode element 35 and the second electrode element on the key circuit board assembly 36 have also been restored (close to) the original design of the space distance, thereby forming another capacitance change, and it can be determined that the transparent key has been released.

In addition, since the elastic body 34 in the third preferred embodiment of the present case also has an elastic body key hole 340, which corresponds to the transparent key 33 passing through the cover key hole 310, the circuit board key hole 360 can correspond to the cover key hole 310 located above it and an elastic body key hole 340 of the elastic body 34 located below it, and the transparent key 33 is arranged therethrough, so that the display screen 38 located below the elastic body 34 can present the at least one key function visual information from the transparent key 33 to the outside through the elastic body key hole 340 and the circuit board key hole 360.

In short, the present invention detects the change in the space distance between the first electrode element and the second electrode element on the key circuit board in each embodiment, thereby sensing the change in capacitance value, and then uses the control device to determine whether the transparent key has been pressed and triggered. This method obviously provides more application possibilities than the conventional technology. For example, the conventional touch key structure must contact the contact surface or contact point through the key pressing stroke before it can react. The result of pressing a key, but this case relies on the change in capacitance value, that is, it provides the user with the flexibility to determine the degree of capacitance change before a pressing signal is output. Even in a longer key pressing process, more different functional applications can be added (for example, it can be used to determine whether the key is in the stage of being ready to be pressed, etc.). In other words, the change in the key pressing distance of this case can trigger different functions to achieve an operation similar to a force sensor. Therefore, this case is a work with great industrial value.

Although the present invention has been disclosed as above by way of embodiments, it is not intended to limit the present invention. Those with ordinary knowledge in the technical field to which the present invention belongs can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope of the patent application attached hereto.

10: Control device

11: Upper cover

110: Cover button hole

111: Inner cover

1110: Another cover button hole

12: Lower cover

13: Transparent buttons

14: Elastic body

140: Elastic body key hole

141: A first surface area of an elastic body

142: A second surface area of one of the elastic bodies

15: First electrode element

16: Button circuit board assembly

160: Circuit board button holes

161: Button circuit board

162: Circuit board support structure

17: Second electrode element

18: Display screen

19: Main control panel

Claims (42)

A control device with a capacitive visual key structure includes: a cover structure, at least including an upper cover and a lower cover combined with the upper cover; a transparent key, exposed through a cover key hole of the upper cover; an elastic body, arranged and attached to the transparent key; a first electrode element, combined with one of the elastic body and the transparent key; a key circuit board assembly, having a second electrode element, and the first electrode element and the second electrode element are arranged to correspond to each other and are electrically connected to form a capacitive structure together; wherein, pressing the transparent key and linking the elastic body to change the electrical connection between the first electrode element and the second electrode element A space distance is provided to form at least one capacitance value variation, and the key circuit board assembly generates at least one corresponding key pressing information in response to the at least one capacitance value variation; a display screen is provided corresponding to a circuit board key hole of the key circuit board assembly and the transparent key; and a main control board is electrically connected to the key circuit board assembly and the display screen, the main control board is used to output at least one key function visual information to the display screen, so as to present the at least one key function visual information to the outside through the transparent key, and to input the at least one key pressing information, and generate and output at least one key function control instruction in response. The control device as described in claim 1, wherein the cover structure further includes an inner cover, which is disposed between the upper cover and the lower cover and adjacent to the inner side of the upper cover, and the inner cover has another cover key hole corresponding to the cover key hole, so that the transparent key can pass through the other cover key hole and the cover key hole to be exposed. The control device as described in claim 1, wherein the elastic body has an elastic body key hole, which corresponds to the transparent key passing through the cover key hole, so that the display screen can present the at least one key function visual information from the transparent key through the elastic body key hole. A control device as described in claim 3, wherein the first electrode element is distributed in the surrounding area of the elastic body key hole. A control device as described in claim 3, wherein the first electrode element is distributed and disposed on at least a portion of one of a first surface area and a second surface area of the elastic body, and the elastic body is located between the upper cover and the key circuit board assembly, so that the first surface area of the elastic body is adjacent to the upper cover, and the second surface area of the elastic body is adjacent to the key circuit board assembly. A control device as described in claim 5, wherein the key circuit board assembly comprises at least a key circuit board having a key hole of the circuit board and a circuit board support structure; wherein the key circuit board having the key hole of the circuit board is adjacent to the second surface area of the elastic body, and the key circuit board assembly is located above the display screen. The control device as described in claim 6, wherein the circuit board supporting structure is a hollow frame structure for supporting the key circuit board, and the circuit board key hole and the hollow frame structure can correspond to the elastic body key hole, and can correspond to the transparent key passing through the cover key hole, so that the display screen can present the at least one key function visual information from the transparent key through the hollow frame structure, the circuit board key hole and the elastic body key hole. The control device as described in claim 6, wherein the second electrode element is disposed on the key circuit board, and the first electrode element and the second electrode element are disposed correspondingly and electrically connected to each other to form the capacitor structure together. The control device as described in claim 8, wherein the second electrode element is a metal wire and is distributed around the key hole of the circuit board and corresponds to the first electrode element. A control device as described in claim 9, wherein the metal wire includes at least one of a closed ring metal wire, an open L-shaped metal wire and a closed ring sawtooth metal wire, which are distributed around the key hole of the circuit board. The control device as described in claim 5, wherein the first electrode element can be at least one of a metal sheet, a conductive coating, a conductive rubber and/or a plurality of metal particles bonded to the conductive rubber. A control device as described in claim 3, wherein the bottom of the transparent key has a key protruding brim extending outward, and the bottom of the transparent key is used to abut against the elastic body, and the first electrode element is distributed and arranged above the surface of the key protruding brim, so that the first electrode element and the transparent key are linked together. The control device as described in claim 12, wherein the key circuit board assembly at least includes a key circuit board having a key hole of the circuit board and a circuit board support structure, and the key circuit board assembly is located between the upper cover and the first electrode element; wherein the second electrode element is a metal wire, and is distributed around the circuit board key hole and corresponds to the first electrode element. The control device as described in claim 13, wherein the first electrode element can be at least one of a metal sheet, a conductive coating, a conductive rubber and/or a plurality of metal particles bonded to the conductive rubber. The control device as described in claim 13, wherein the circuit board key hole corresponds to the cover key hole located above it and the elastic body key hole located below it, and the transparent key is arranged therethrough, so that the display screen located below the elastic body can present the at least one key function visual information from the transparent key through the elastic body key hole and the circuit board key hole. The control device as described in claim 1, wherein the transparent button is pressed and the elastic body is linked, so that the elastic body generates an elastic deformation to change the space distance between the first electrode element and the second electrode element, thereby forming the at least one capacitance value variation, and the button circuit board assembly generates the corresponding at least one button pressing information in response to the at least one capacitance value variation. A control device with a capacitive visual key structure includes: a cover structure with a receiving space; and a transparent key, which is disposed in the receiving space and exposed through a cover key hole of the cover structure; wherein the receiving space can be provided with at least: an elastic body, which is disposed and attached to the transparent key; a first electrode element, which is combined with one of the elastic body and the transparent key; a key circuit board assembly, which has a second electrode element, and the first electrode element and the second electrode element are arranged to correspond to each other and are electrically connected. The transparent button is arranged to form a capacitor structure together; wherein, the space distance between the first electrode element and the second electrode element is changed by pressing the transparent button and the elastic body is linked to form at least one capacitance value variation, and the control device generates at least one corresponding key pressing information in response to the at least one capacitance value variation; and a display screen is arranged corresponding to a circuit board button hole of the button circuit board assembly and the transparent button to output and present at least one key function visual information provided by the control device through the transparent button. The control device as described in claim 17, wherein the elastic body has an elastic body key hole, which corresponds to the transparent key passing through the cover body key hole, so that the display screen can present the at least one key function visual information from the transparent key through the elastic body key hole. A control device as described in claim 17, wherein the first electrode element is distributed and disposed on at least a portion of one of a first surface area and a second surface area of the elastic body, and the elastic body is located between the cover structure and the key circuit board assembly, so that the first surface area of the elastic body is adjacent to the cover structure, and the second surface area of the elastic body is adjacent to the key circuit board assembly. A control device as described in claim 19, wherein the key circuit board assembly comprises at least a key circuit board having a key hole of the circuit board and a circuit board support structure; wherein the key circuit board having the key hole of the circuit board is adjacent to the second surface area of the elastic body, and the key circuit board assembly is located above the display screen. The control device as described in claim 20, wherein the second electrode element is disposed on the key circuit board, and the first electrode element and the second electrode element are disposed correspondingly and electrically connected to each other to form the capacitor structure together. The control device as described in claim 19, wherein the first electrode element can be at least one of a metal sheet, a conductive coating, a conductive rubber and/or a plurality of metal particles bonded to the conductive rubber. A control device as described in claim 17, wherein the bottom of the transparent key has a key protruding brim extending outward, and the bottom of the transparent key is used to abut against the elastic body, and the first electrode element is distributed and arranged above the surface of the key protruding brim, so that the first electrode element and the transparent key are linked together. A control device as described in claim 23, wherein the key circuit board assembly comprises at least a key circuit board having a key hole of the circuit board and a circuit board support structure, and the key circuit board assembly is located between the cover structure and the first electrode element; wherein the second electrode element is a metal wire and is distributed around the circuit board key hole and corresponds to the first electrode element. The control device as described in claim 18, wherein the circuit board key hole corresponds to the cover key hole located above it, and corresponds to the elastic body key hole located below it, and the transparent key is arranged therethrough, so that the display screen located below the elastic body can present the at least one key function visual information from the transparent key through the elastic body key hole and the circuit board key hole. The control device as described in claim 17, wherein the transparent button is pressed and the elastic body is linked, so that the elastic body generates an elastic deformation to change the space distance between the first electrode element and the second electrode element, thereby forming the at least one capacitance value variation, and causing the button circuit board assembly and one of the main control boards further included in the control device to generate the corresponding at least one button pressing information in response to the at least one capacitance value variation. The control device as described in claim 26, wherein the main control board is electrically connected to the key circuit board assembly and the display screen, and the main control board is used to output the at least one key function visualization information to the display screen, so as to present the at least one key function visualization information to the outside through the transparent key, and to generate and output at least one key function control instruction in response to the at least one key pressing information. A control device with a capacitive visual key structure includes: a cover structure; a transparent elastic key structure exposed through a cover key hole of the cover structure; a first electrode element combined with the transparent elastic key structure; a circuit control component having a second electrode element, and the first electrode element and the second electrode element are arranged correspondingly and electrically connected to each other to form a capacitive structure together; wherein the transparent elastic key structure is pressed to change the first electrode element. The space distance between the first electrode element and the second electrode element is used to form at least one capacitance value variation, and the circuit control component generates at least one corresponding key pressing information in response to the at least one capacitance value variation; and a display screen is electrically connected to the circuit control component, and the display screen is set corresponding to the transparent elastic key structure to output and present at least one key function visual information provided by the circuit control component through the transparent elastic key structure. The control device as described in claim 28, wherein the cover structure includes at least an upper cover and a lower cover combined with the upper cover, and together form a receiving space for at least arranging the transparent elastic key structure, the first electrode element, the circuit control component having the second electrode element, and the display screen. The control device as described in claim 29, wherein the cover structure further includes an inner cover, which is disposed between the upper cover and the lower cover and adjacent to the inner side of the upper cover, and the inner cover has another cover key hole corresponding to the cover key hole, so that the transparent elastic key structure can pass through the other cover key hole and the cover key hole to be exposed. The control device as described in claim 28, wherein the transparent elastic key structure at least includes: a transparent key, which is exposed through the key hole of the cover; and an elastic body, which is arranged and attached to the transparent key. The control device as described in claim 31, wherein the elastic body has an elastic body key hole, which corresponds to the transparent key passing through the cover body key hole, so that the display screen can present the at least one key function visual information from the transparent key through the elastic body key hole. A control device as described in claim 31, wherein the first electrode element is distributed and disposed on at least a portion of one of a first surface area and a second surface area of the elastic body, and the elastic body is located between the cover structure and the circuit control component, so that the first surface area of the elastic body is adjacent to the upper cover, and the second surface area of the elastic body is adjacent to the circuit control component. A control device as described in claim 33, wherein the circuit control component comprises at least a key circuit board having a circuit board key hole and a circuit board support structure; wherein the key circuit board having the circuit board key hole is adjacent to the second surface area of the elastic body, and the key circuit board and the circuit board support structure are located above the display screen. The control device as described in claim 34, wherein the second electrode element is disposed on the key circuit board, and the first electrode element and the second electrode element are disposed correspondingly and electrically connected to each other to form the capacitor structure together. The control device as described in claim 33, wherein the first electrode element can be at least one of a metal sheet, a conductive coating, a conductive rubber and/or a plurality of metal particles bonded to the conductive rubber. A control device as described in claim 31, wherein the bottom of the transparent key has a key protruding brim extending outward, and the bottom of the transparent key is used to abut against the elastic body, and the first electrode element is distributed and arranged above the surface of the key protruding brim, so that the first electrode element and the transparent key are linked together. A control device as described in claim 37, wherein the circuit control component at least includes a key circuit board having a circuit board key hole and a circuit board support structure, and the circuit control component is located between the cover structure and the first electrode element; wherein the second electrode element is a metal wire and is distributed around the circuit board key hole and corresponds to the first electrode element. The control device as described in claim 32, wherein the circuit board key hole corresponds to the cover key hole located above it, and corresponds to the elastic body key hole located below it, and the transparent key is arranged therethrough, so that the display screen located below the elastic body can present the at least one key function visual information from the transparent key through the elastic body key hole and the circuit board key hole. As described in claim 34, the control device, wherein the transparent button is pressed and the elastic body is linked, so that the elastic body generates an elastic deformation to change the space distance between the first electrode element and the second electrode element, thereby forming the at least one capacitance value variation, and the button circuit board generates the corresponding at least one button pressing information in response to the at least one capacitance value variation. The control device as described in claim 34, wherein the circuit control component further includes a main control board, and pressing the transparent button and linking the elastic body, so that the elastic body generates an elastic deformation to change the space distance between the first electrode element and the second electrode element, thereby forming the at least one capacitance value variation, and causing one of the button circuit board and the main control board to generate the corresponding at least one button pressing information in response to the at least one capacitance value variation. The control device as described in claim 41, wherein the main control board is electrically connected to the key circuit board and the display screen, and the main control board is used to output the at least one key function visualization information to the display screen, so as to present the at least one key function visualization information to the outside through the transparent key, and to generate and output at least one key function control instruction in response to the at least one key pressing information.